Which is the function of the cytoplasm within a eukaryotic or prokaryotic cell? a. transport materials within the cell. b.control what materials move into and out of the cell. c.provide the cell with energy to perform its other functions. d.store genetic information that provides instructions for the cell.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8